mclouahlin



2 SheetsSheet 1.

(N0 Modei.)

G. MQLOUGHLIN.

COIN ADJUSTER.

* ted Mar. 5, 1889.

N Puma Puma-Lithographer. Washinghm. n c.

2 Sheets-Sheet 2.

- Mar. 5, 1889.

(No Model.)-

G. MOLOUGHLIN.

GOIN ADJUSTER.

Swuewl'oz f l% L1 attozmqi UNITED STATES ATET @rrrcn.

GEORGE MCLOI GIILIN, OF CARSOX, NEVADA.

COIN-ADJUSTER.

SPECIFICATION forming part of Letters Patent No. 399,065, dated March 5, 1889;

Application filed June 26, 1888. Serial No. 278,298. (No model.)

To all whom if may concern:

Be it known that I, Gnonon McLouonmn, a citizen of the United States, residing at Carson, in the county of Ormsby and State of Nevada, have invented certain new and useful Improvements in Coin-Adjusters; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to improvements in the art of coining, the object being to construct a machine that shall reduce the planchets or blanks from which the coins are made to the proper weight for the coin to be produced therefrom. ment of these planchets has been accomplished by operatives who,by means of a file applied to the edge of the same, removed sufficient metal to bring the planchet to the desired weight. This method of operation is, however, ohjectimiable, as many pieces are spoiled in filing by the unequal removal of the metal by the file, a slight excess rendering the piece too light; besides it is necessary l to use great care in the preparation of the strips of metal from which the planchets are cut, as after being rolled as near as possible to the desired thickness they were drawn between dies to get them to an equal thickness suitable to that of the coin to be pro duced. By this invention much of this labor is avoided, as it is not necessary to pass the strips through the draw-bench; but the planchets may be cut therefrom as they come from the rolls, an excess in thickness being purposely allowed, so as to leave material for removal by the adj ustingqnachi n o. chine consists, essentially, of two metallic plates placed one above the other and united by 'tong screw-bolts, the lower of the two plates being supported by any suitable frame, audhaving in its upper surface a circular recess of about half the depth of the thickness of the coin to be operated upon. The upper plate is also provided with a similar recess upon its under side, so that a series of strong Heretofore the adjust- 1 This inacurved arms attached to a central shaft may rotate therein. The lower plate has also an opening through it, at one edge of which, in a suitable recess, is placed a strong verticallyadjustable knife, and above this knife, in a recess of the upper plate, is adjustably secured a steel plate. The planchots are placed in a vertical feeding-tube attached to the upper plate, which has an opening through it of the same diameter as the internal diameter of the feeding-tube.

It is evident that when the feeding-tube is supplied with planchets the lower one will rest upon the lower plate within the recess and in the path of the rotating arms, by one of which itwill be carried forward between the knife and steel plate above it, and that in its passage any superlluity of metal will be shaved from the under side of the hlanchet, v which, after passing the knife, drops through 3 a hole in the lower plate into a suitable receptacle. As these planchcts for any particular coin are all of the same diameter, it is evident that the knife may be adjusted so as to take cit a shaving, leaving the planchet of any desired weight, and that after the machine has been properly adjusted any number of them maybe passed through it, which will all be exactly of the same thickness and diameter, and consequently of the same weight.

To more fully describe the invention, reference will be made to the drawings, in which Figure 1 is a side elevation of the machine complete. Fig. 2 is atop or plan view of the same; Fig. 3, a vertical section on the line c :c of Fig. 2; Fig. 4, a top or plan view of the upper side of the lower recessed plate, showing the position of the openings therein with relation to the adjustable knife. Fig. 5 is a plan of the under side of the upper recessed plate. Fig. (3 is a vertical section through the line 3 12 Fig. 2.

In the several figures, A represents the lower recessed plate B,tl1eupperplate. 'lheseplalcs are firmly secured together by the screw-bolts l (awhich pass freely through holes in the plate B and screw into the plate A. These bolts may bet'urther lengthened, so as to pass through the lugs I. of the legs of the supporting-frame L, and provided on the under side of said legs with nuts (1, by which the frame and plates supported thereby willbe firmly united. The upper surface of the plate A is provided with a circular recess of slight depth, and with a central orifice which forms a j0urnal-bearing forthe vertical shaft C, the lower end of which is stepped in a suitable support upon the frame L. This shaft 0 is provided with suitable gearing to impart a rotary motion to the same when desired, and carries upon its upper end, within the circular recesses of the plates A B, the plate H, secured upon said shaft by the nut 19. This plate H is provided with a series of curved fingers, h, which radiate from its center, and form the means by which the planchets are carried forward in the recess between the plates. The plate A is further provided with an opening, b, Fig. 6, through the same for-the passage of chips shaved from the under side of the planchets by the knife D, which knife is secured in a rectangular recess of the plate adjacent to the opening I), and is secured and adjusted therein by the screws 0 and c, the screws 0 passing through the knife and engaging with the plate, and the screws 0 also passing through the knife, but with their lower ends resting upon the plate within the rectangular recess which receives the knife. It will be apparent that by manipulating these screws the knife may be raised above the bottomof the circular recess in plate A to take a shaving from the under side of the planchet of any desired thickness. The plate B has a circular recess on its under side similar to that in the upper side of plate A, and is further provided with a recess overthe knife in the lower plate for the reception of the steel plate E. This plate is made vertically adjustable by means of the screw E, which passes down through a projection, F, upon the top of the plate B, and by which the distance between the knife and said plate E is regulated. At one side, and

in advance of these 1ast-named devices, is placed the feeding-tube G, the internal diameter of which is a little more than that of the planchet to be operated upon, so that a pile of them placed in the tube will readily pass down through the same, always keeping the lower one resting upon the plate A in position to be carried forward by the fingers of plate H in its revolutions. These fingers carry the planchet forward between the knife and plate E, where it is shaved to the desired thickness, the shavings dropping into a box below the knife. It then passes on until it reaches the hole K, formed in the lower plate, through which it drops into a suitable receptacle.

The operation of the machine will be readily understood from the above description,

and among its advantages may be enumerated the following: Great rapidity in adjusting the weight of the planchets for coining, accuracy in the result, perfect system of saving the waste, no spoiled planchets, and no necessity for using a draw-bench in preparing the strips of metal from which they are cut.

Having thus described my invention, I claim as new and desire to secure by Letters Patent of the United States the following:

1. In a machine for adjusting planchets, the combination of the plates A and B, relatively adjustable, the feed-tube G, and the knife D, attached to said plates, and the plate provided with fingers revolving between said plates A and B to carry forward the planchets, substantially as specified.

2. In a planchet-adjusting mechanism, the combination, with the recessed plates, of fingers revolving in the recess between said plates, an adjustable shaving-knife, the feeding-tube, and an opening through the lower plate for the escape of the planchets, as and for the purpose specified.

3. In adjusting mechanism for coining, the combination of the supporting-frame, recessed plates A B, knife D, and plate E, with the revolving shaft O, carrying the plate H, said plate being provided with curved fingers adapted to carry the planchet between the knife and plate E, substantially as and for.

the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE ,MCLOUGHLIN. IVitnesses:

J. F. HALLooK; P. B. ELLIS. 

